streams/Zotlabs/Module/Tagrm.php

<?php

namespace Zotlabs\Module;

use Zotlabs\Web\Controller;

require_once('include/bbcode.php');


class Tagrm extends Controller
{

    public function post()
    {

        if (!local_channel()) {
            goaway(z_root() . '/' . $_SESSION['photo_return']);
        }


        if ((x($_POST, 'submit')) && ($_POST['submit'] === t('Cancel'))) {
            goaway(z_root() . '/' . $_SESSION['photo_return']);
        }

        $tag = ((x($_POST, 'tag')) ? trim($_POST['tag']) : '');
        $item = ((x($_POST, 'item')) ? intval($_POST['item']) : 0);

        $r = q(
            "SELECT * FROM item WHERE id = %d AND uid = %d LIMIT 1",
            intval($item),
            intval(local_channel())
        );

        if (!$r) {
            goaway(z_root() . '/' . $_SESSION['photo_return']);
        }

        $r = fetch_post_tags($r, true);

        $item = $r[0];
        $new_tags = [];

        if ($item['term']) {
            for ($x = 0; $x < count($item['term']); $x++) {
                if ($item['term'][$x]['term'] !== hex2bin($tag)) {
                    $new_tags[] = $item['term'][$x];
                }
            }
        }

        if ($new_tags) {
            $item['term'] = $new_tags;
        } else {
            unset($item['term']);
        }

        item_store_update($item);

        info(t('Tag removed') . EOL);
        goaway(z_root() . '/' . $_SESSION['photo_return']);

        // NOTREACHED
    }


    public function get()
    {

        if (!local_channel()) {
            goaway(z_root() . '/' . $_SESSION['photo_return']);
            // NOTREACHED
        }

        // remove tag on the fly if item and tag are provided
        if ((argc() == 4) && (argv(1) === 'drop') && intval(argv(2))) {
            $item = intval(argv(2));
            $tag = argv(3);

            $r = q(
                "SELECT * FROM item WHERE id = %d AND uid = %d LIMIT 1",
                intval($item),
                intval(local_channel())
            );

            if (!$r) {
                goaway(z_root() . '/' . $_SESSION['photo_return']);
            }

            $r = fetch_post_tags($r, true);

            $item = $r[0];

            $new_tags = [];

            if ($item['term']) {
                for ($x = 0; $x < count($item['term']); $x++) {
                    if ($item['term'][$x]['term'] !== hex2bin($tag)) {
                        $new_tags[] = $item['term'][$x];
                    }
                }
            }

            if ($new_tags) {
                $item['term'] = $new_tags;
            } else {
                unset($item['term']);
            }

            item_store_update($item);

            info(t('Tag removed') . EOL);
            goaway(z_root() . '/' . $_SESSION['photo_return']);
        }

        //if we got only the item print a list of tags to select
        if ((argc() == 3) && (argv(1) === 'drop') && intval(argv(2))) {
            $o = '';

            $item = intval(argv(2));

            $r = q(
                "SELECT * FROM item WHERE id = %d AND uid = %d LIMIT 1",
                intval($item),
                intval(local_channel())
            );

            if (!$r) {
                goaway(z_root() . '/' . $_SESSION['photo_return']);
            }

            $r = fetch_post_tags($r, true);

            if (!count($r[0]['term'])) {
                goaway(z_root() . '/' . $_SESSION['photo_return']);
            }

            $o .= '<h3>' . t('Remove Item Tag') . '</h3>';

            $o .= '<p id="tag-remove-desc">' . t('Select a tag to remove: ') . '</p>';

            $o .= '<form id="tagrm" action="tagrm" method="post" >';
            $o .= '<input type="hidden" name="item" value="' . $item . '" />';
            $o .= '<ul>';


            foreach ($r[0]['term'] as $x) {
                $o .= '<li><input type="checkbox" name="tag" value="' . bin2hex($x['term']) . '" >' . bbcode($x['term']) . '</input></li>';
            }

            $o .= '</ul>';
            $o .= '<input id="tagrm-submit" type="submit" name="submit" value="' . t('Remove') . '" />';
            $o .= '<input id="tagrm-cancel" type="submit" name="submit" value="' . t('Cancel') . '" />';
            $o .= '</form>';

            return $o;
        }
    }
}